Hello, I redirected all non-existed subdomains including example.com itself to www.example.com My DNS record has two A records; * 123.456.789 @ 123.456.789 Should I also add www as an A record or CNAME ? I was thinking "*" as an A record will also answer for the requests for www.example.com But www.example.com is an existed sub-domain and my DNS will answer ""no error, but no data"" as mentioned at http://en.wikipedia.org/wiki/Wildcard_DNS_record So, if I don't add "www" to my DNS zone separately, is it possible to face with some DNS resolution problems in some ISP's in the World?